Implement tripleo::network::os_net_config class
Implement tripleo::network::os_net_config class

This class will be used on the undercloud to deploy os_net_config.

Change-Id: I507c237a35250b660b37ea8cfc4e8e7f97ae21e2

openstack/puppet-tripleo,openstack/puppet-tripleo,openstack/puppet-tripleo